Two-Phonon Octupole Excitation in 146Gd

Journal Article · Wed Apr 26 00:00:00 EDT 2006 · AIP Conference Proceedings

DOI:https://doi.org/10.1063/1.2200927· OSTI ID:20798533

Caballero, L; Rubio, B; Nacher, E ^[1]; Kleinheinz, P ^[2]; Algora, A ^[1]; Blomqvist, J ^[3]; Dewald, A; Fitzler, A; Jolie, J; Linnemann, A; Moeller, O ^[4]; Gadea, A ^[5]; Julin, R; Piiparinen, M ^[6]; Lunardi, S; Menegazzo, R ^[7]; Yates, S W ^[8]

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1. Instituto de Fisica Corpuscular, CSIC-Univ. de Valencia, E-46071 Valencia (Spain)
2. Institut fuer Kernphysik, Forschungszentrum Juelich, D-52425 Juelich (Germany)
3. Department of Physics, Royal Institute of Technology, Stockholm (Sweden)
4. Institut fuer Kernphysik, University of Cologne, Cologne (Germany)
5. Laboratori Nazionali di Legnaro, INFN, Legnaro (Italy)
6. Department of Physics, University of Jyvaeskylae, FIN-40014 Jyvaeskylae (Finland)
7. Dipartimento di Fisica, Padova (Italy)
8. Department of Chemistry, Univ. of Kentucky, Lexington, KY 40506-0055 (United States)

The excited states in 146Gd have been re-investigated with the 144Sm({alpha},2n) reaction using a modern Ge {gamma}-ray array including a polarimeter. Amongst the non-yrast states populated in this reaction we have identified the aligned 6+ member of the two-phonon octupole quartet from the observation of the E3 branching to the one phonon 3- state. Our results represent the first observation of a 6+{yields}3-{yields}0+ E3 cascade in an even-even nucleus.

• OSTI ID: 20798533
• Journal Information: AIP Conference Proceedings, Vol. 831, Issue 1; Conference: International conference on frontiers in nuclear structure, astrophysics, and reactions - FINUSTAR, Isle of Kos (Greece), 12-17 Sep 2005; Other Information: DOI: 10.1063/1.2200927; (c) 2006 American Institute of Physics; Country of input: International Atomic Energy Agency (IAEA); ISSN 0094-243X
• Country of Publication: United States
• Language: English

Related Subjects

73 NUCLEAR PHYSICS AND RADIATION PHYSICS
ALPHA REACTIONS
BRANCHING RATIO
E3-TRANSITIONS
EXCITATION
EXCITED STATES
GADOLINIUM 146
GAMMA RADIATION
GAMMA SPECTROSCOPY
GE SEMICONDUCTOR DETECTORS
NEUTRONS
OCTUPOLES
PHONONS
POLARIMETERS
S STATES
SAMARIUM 144 TARGET
YRAST STATES